#include <stdio.h>
#include <unistd.h> //_exit
#include <stdlib.h> //exit
#include <sys/types.h>
#include <sys/wait.h> //wait waitpid
#include <signal.h> //kill
#include <string.h> //
#include <fcntl.h> //open
#include <sys/stat.h> //mkfifo
#include <errno.h> //errno
#include <sys/ipc.h> //shmget
#include <sys/shm.h> //shmget
#include <sys/msg.h> //msgget
void fixbug()
{
	printf("this is fixbug\n");
}

void new_feature()
{
	printf("this is new_feature\n");
}

void new_feature2()
{
	printf("this is new_feature2\n");
}

int main(int argc, const char *argv[])
{
	fixbug2();
	fixbug();
	new_feature2();
	new_feature();
	//哈哈
	printf("hello dev!\n");
	printf("hello world!\n");
	printf("hello master!\n");
	return 0;
}
void fixbug2()
{
	printf("fix_bug2\n");
}
